Revert of Add next_version_mini_installer target.

chrome/installer/mini_installer/generate_next_version_mini_installer.py

-# Copyright 2016 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-"""Generates a mini_installer with a higher version than an existing one."""
-
-import argparse
-import subprocess
-import sys
-
-
-def main():
-  parser = argparse.ArgumentParser()
-  parser.add_argument('--out', help='Path to the generated mini_installer.')
-  args = parser.parse_args()
-  assert args.out
-
-  return subprocess.call([
-      'alternate_version_generator.exe',
-      '--force',
-      '--out=' + args.out,
-      ])
-
-
-if '__main__' == __name__:
-  sys.exit(main())